The Jersey City Reservoir spans Parsippany as well as the Split Rock Reservoir in Rockaway and Boonton. Together they hold about 11.3 billion gallons of water. The reservoirs are located in Morris County and cover nearly 2,000 acres. The Jersey City Reservoir is 800 square acres and holds 8 billion gallons of water. The source for this water body is a 120 square mile watershed – the region draining into a river, river system, or other body of water. The Split Rock Reservoir is a 3 mile long by .5 mile “reserve” reservoir that holds 3.3 billion gallons.

At United Water we take great pride in our ability to provide you with drinking water that meets or surpasses all state and federal standards. We constantly monitor the quality of drinking water—before, during and after the purification process. We report the results to state and federal agencies. If you would like more information on water quality, call us at 1 800 575 4433 (Jersey City customers) or 1 800 422 5987 (Hoboken customers).

The Consumer Confidence Report (CCR) for Jersey City and Hoboken provides detailed information about your water quality. You can downlowad a portable document format (pdf) of our CCR.

Hoboken Consumer Confidence Report
Jersey City Consumer Confidence Report

To view or print, please download the free Adobe Acrobat Reader.

All of Jersey City’s water supply comes from reservoirs. This type of water is called surface water because it is stored on the earth’s surface. The treatment process begins at the Jersey City Water Treatment Plant in Boonton.

Pumps draw the water from the reservoir into the treatment plant. Next, the water flows through a screen that removes sticks, fish, rock and other objects. The chemicals polymaluminum chloride and polymer are added and bind small particles together to form larger particles called “floc.” We do this because it’s easier to remove larger particles from the water. During the next step, the water mixes with the chemicals at the flocculation station. Then the water flows to a settling basin where the floc falls to the bottom. The clean water on the top moves to a filter gallery where it flows through layers of coal, sand and gravel to remove the smallest remaining particles. A small dose of chlorine is added to make sure the water remains pure and safe as it travels to your home. Finally, we add corrosion control chemicals to reduce the chance of lead dissolving in the water from household plumbing. The treated water leaves the plant and is carried by gravity for the entire trip to the heart of Jersey City. Only one pumping station, The Troy Street Station, pumps the water up to The Heights.

Surface Water Treatment Schematic

For more information on water-related issues visit these sites:

American Water Works Association

U.S. Environmental Protection Agency

State of New Jersey

NJ Department of Environmental Protection

NJ Utilities Association

The National Association of Water Companies

NJ Board of Public Utilities

Please email us